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senescence

 - 8 dictionary results

se⋅nes⋅cent

  [si-nes-uhnt]
Use senescence in a Sentence
–adjective
growing old; aging.
Origin:
1650–60; < L senēscent- (s. of senēscēns) prp. of senēscere to grow old, equiv. to sen- old + -ēscent- -escent

Related forms:
se⋅nes⋅cence, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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se·nes·cent   (sĭ-něs'ənt)   
adj.  Growing old; aging.

[Latin senēscēns, senēscent-, present participle of senēscere, to grow old, inchoative of senēre, to be old, from senex, sen-, old; see sen- in Indo-European roots.]
se·nes'cence n.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

senescent 
1656, from L. scenescens, prp. of senescere "to grow old," from senex "old" (see senile).
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: se·nes·cence
Pronunciation: si-'nes-&n(t)s
Function: noun
: the state of being old : the process ofbecoming old

Main Entry: se·nes·cent
Pronunciation: si-'nes-&nt
Function: adjective
: relating to, characterized by, or associated withsenescence <senescent persons> <senescent arthritis>
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

senescence se·nes·cence (sĭ-něs'əns)
n.
The process of growing old; aging.

senescent se·nes·cent (sĭ-něs'ənt)
adj.
Growing old; aging.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia

senescence

in human beings, the final stage of the normal life span. Definitions of old age are not consistent from the standpoints of biology, demography (conditions of mortality and morbidity), employment and retirement, and sociology. For statistical and public administrative purposes, however, old age is frequently defined as 60 or 65 years of age or older

Learn more about senescence with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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